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Theorie und Anwendung der impulsbasierten Dynamiksimulation
Daniel Bayer
Theorie und Anwendung der impulsbasierten Dynamiksimulation
Interaktive Dynamiksimulationen sind ein wichtiger Bestandteil vieler Anwendungen der virtuellen Realität. Die impulsbasierte Dynamiksimulation ist ein vergleichsweise junges Verfahren zur Berechnung solcher Simulationen. In dieser Arbeit wird dieses Verfahren erstmals umfassend theoretisch untersucht und seine Korrektheit gezeigt. Daneben werden wesentliche praktische Aspekte des Verfahrens und der interaktiven mechanischen Mehrkörpersimulation im Allgemeinen diskutiert.
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39,90 € *
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9783863760588
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Mobile Technologien in der Assekuranz
Marcel Altendeitering
Mobile Technologien in der Assekuranz
Wie sie effektiv genutzt und im Rahmen einer "Mobile-Strategie" umgesetzt werden können.
Die Nutzung mobiler Endgeräte und der Absatz von mobilen Anwendungen/Applications (Apps) nehmen weiterhin sehr stark zu. Es wird erwartet, dass Smartphones schon bald Computer und Laptops als meistgenutztes Endgerät ablösen werden. Aus diesen Trends ergeben sich industrieübergreifend neue Herausforderungen für Unternehmen, die einen großen Druck auf diese entstehen lassen. Unternehmen können diesem Druck nur standhalten und ihre Wettbewerbsfähigkeit dauerhaft aufrechterhalten, indem sie eine eigene „Mobile-Strategie“ entwickeln und sicherstellen, dass diese Strategie im Einklang mit der allgemeinen Unternehmensstrategie festgelegt wird. Eine solche Mobile-Strategie beschreibt dabei zum einen die notwendigen inhaltlichen und strukturellen Veränderungen in der Prozesslandschaft eines Unternehmens. Zum anderen werden neue technische Anforderungen identifiziert und zu beachtende nicht-technische Aspekte beleuchtet. Es ist daher für Unternehmen essentiell, eine geeignete Mobile-Strategie zu entwickeln und diese konsequent umzusetzen. Dabei entstanden die Fragen: Wie soll zur Umsetzung einer Mobile-Strategie vorgegangen werden? Welche Veränderungen sind im Unternehmen notwendig? Und welche neuen Sicherheitsaspekte müssen im Kontext mobiler Technologien beachtet werden?
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29,90 € *
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9783863760410
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Algorithms in Matlab
Dr. Etienne Aubin Mbe Mbock
Algorithms in Matlab
The Reality of Abstraction and the Power of Pseudocodes
This book is dedicated to writing pseudocodes that have been tested using the matlab programming language. These pseudocodes are universal and will be implemented in other programming languages. The book starts with the presentation of elementary algorithms, covers linear algebra and matrix based linear optimization algorithms. The goal of this book is to teach algorithms by giving their standard description and providing a mathematical mesure on the research feld of dynamic partial reconguration ( DPR ) and FPGA implementation of algorithms. We start this book with simple algorithms and end up with complicated algorithms that will need more effort from lecturers. The codes have been tested on matlab machines. To avoid the reimplementation of the pseudocodes your can purchase the codes directly from the author as CD, install and use them in matlab sessions.
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49,90 € *
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9783863760335
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Assertion Level Proof Planning with Compiled Strategies
Dr. Dominik Dietrich
Assertion Level Proof Planning with Compiled Strategies
This book presents new techniques that allow the automatic verification and generation of abstract human-style proofs. The core of this approach builds an efficient calculus that works directly by applying definitions, theorems, and axioms, which reduces the size of the underlying proof object by a factor of ten. The calculus is extended by the deep inference paradigm which allows the application of inference rules at arbitrary depth inside logical expressions and provides new proofs that are exponentially shorter and not available in the sequent calculus without cut. In addition, a strategy language for abstract underspecified declarative proof patterns is developed. Together, the complementary methods provide a framework to automate declarative proofs. The benefits of the techniques are illustrated by practical applications.
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39,90 € *
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9783863760199
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Large Eddy Simulation of Premixed Combustion Using Artificial Flame
Dr. Guido Künne
Large Eddy Simulation of Premixed Combustion Using Artificial Flame
This work considers the simulation of premixed combustion with regard to the application in stationary gas turbines and future aero engines. With respect to the pollutant reduction of current devices as well as complementary technologies in the context of renewable energies, premixed flames are of increasing importance but exhibit reduced stability properties compared to conventional non-premixed systems. Regarding this, the simulation can provide detailed insight into the physical mechanisms for scientific research as well as help in the design of combustors in an industrial environment. However, due to the large complexity of the process the predicting capabilities are currently insufficient to serve as a reliable tool and it is the objective of this work to contribute in improving the simulation towards that capability. As given by the title, a joint approach is presented here to compute the chemical reaction embedded in the turbulent flow. The required steps from the theoretical background towards the application to systems of practical relevance are thoroughly investigated with emphasis on the grid-dependency of flame propagation and computational efficiency.
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39,90 € *
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9783863760144
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Optimisation of battery operating life considering software tasks and their timing behaviour
Dr. Henrik Lipskoch
Optimisation of battery operating life considering software tasks and their...
Today, batteries serve as a power supply for almost every electronic device which people carry around or install in locations that have no access to the mains. The longer a battery powered system can operate without need for recharge or battery replacement, the more will maintenance cost and the number of faults due to insufficient power supply decrease. This work considers multiple independent software tasks that are assigned to the same processor. The tasks are supposed to have hard deadlines and are to be scheduled earliest deadline first (EDF). Energy consumption is optimised using processor voltage and frequency scaling, per task or per task set, and processor shutdown, periodically or task-dependent. An event-stream based hard real-time test ensures the feasibility of the solutions, and it provides low computational complexity for the optimisation problem. Optimal configurations in the sense of a long operating life are determined with the help of a battery model which is developed in this work. The model is evaluated with measurements on real batteries. A positive effect of pulsed discharge was falsified for pulses in the range of 50 ?s to 10 ms. Based on the results, a battery model is derived which is as simple as the Peukert-formula and which provides an error of less than 7% for the battery samples which were used in the experiments.
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39,90 € *
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9783941274952
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Analog Frontends for Optical Communications up to 80 GBit/s
Dr. Christian Knochenhauer
Analog Frontends for Optical Communications up to 80 GBit/s
This book studies methods of enhancing both data rates and power efficiencies of analog frontends for high-speed optical communication systems. Performance measures for highspeed broadband circuits and the efficiency of frequency compensation methods are evaluated. Power-efficient speed enhancement such as inductive peaking, feedback and Negative Miller Capacitances, as well as the method of inductive broadband output matching are analyzed in detail. New methods for the design of power-efficient high-speed broadband amplifiers are developed. Circuit design examples intended for use in 40 GBit/s to 80 GBit/s short-range optical communication systems at 850 nm wavelength demonstrate the efficiency of the presented methods.
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44,90 € *
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9783941274754
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